Find f(x) = a(x - h)2 + k so that f models the data exactly.
A. f(x) = 2(x - 7)2 - 3
B. f(x) = 
(x - 3)2 - 7
C. f(x) = (x + 3)2 + 7
D. f(x) = 
(x + 3)2 + 7
Answer: D
Mathematics
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A. 10 B. 20 C. 0 D. -10
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A. 200 B. 800 C. 1000 D. 400
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Solve the problem.A boat traveled for 4 hr with a 2.5-mph current to reach a picnic area. The return trip against the same current took 6 hr. Find the speed of the boat in still water.
A. 12.5 mph B. 60 mph C. 27.5 mph D. 15 mph
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Factor the trigonometric expression and simplify.sec4x - 2 sec2x tan2x + tan4x
A. sec2x (1 + tan2x) B. sec2x + tan2x C. 2 D. 1
Mathematics